Photoluminescence quenching of a CdS nanoparticles/ZnO nanorods core-shell heterogeneous film and its improved photovoltaic performance

S. A. Vanalakar; S. S. Mali; M. P. Suryawanshi; N. L. Tarwal; P. R. Jadhav; G. L. Agawane; K. V. Gurav; A. S. Kamble; S. W. Shin; A. V. Moholkar; J. Y. Kim; J. H. Kim; P. S. Patil

doi:10.1016/j.optmat.2014.09.005

Photoluminescence quenching of a CdS nanoparticles/ZnO nanorods core-shell heterogeneous film and its improved photovoltaic performance

S. A. Vanalakar, S. S. Mali, M. P. Suryawanshi, N. L. Tarwal, P. R. Jadhav, G. L. Agawane, K. V. Gurav, A. S. Kamble, S. W. Shin, A. V. Moholkar, J. Y. Kim, J. H. Kim, P. S. Patil

Chemical Engineering and Materials Science

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

CdS nanoparticles/ZnO nanorods core-shell heterogeneous thin films were successfully fabricated using a chemical bath deposition process. X-ray diffraction (XRD), optical spectroscopy and field emission scanning electron microscopy (FE-SEM) were used for the characterization of the samples. Photoluminescence (PL) properties of the CdS nanoparticles/ZnO nanorods core-shell heterogeneous films were studied using PL spectroscopy. The injection of electrons from the CdS conduction band into the ZnO conduction band upon excitation was confirmed by PL quenching. The PL quenching in the present study demonstrated that more than one CdS nanoparticle is capable of networking with the single ZnO nanorod and taking an active part in the charge injection process. By attaching the CdS nanoparticles, the authors found the surface photovoltaic characteristics of ZnO were changed significantly. With a liquid electrolyte as the hole transport medium, CdS nanoparticles/ZnO nanorods core-shell heterogeneous film exhibited a short-circuit current density of 3.62 mA cm^-2 and an open-circuit voltage of 643 mV with a total light-to-electricity power conversion efficiency of 1.48% under visible light.

Original language	English (US)
Pages (from-to)	766-772
Number of pages	7
Journal	Optical Materials
Volume	37
Issue number	C
DOIs	https://doi.org/10.1016/j.optmat.2014.09.005
State	Published - 2014

Bibliographical note

Funding Information:
This work was supported by a Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (No.: 20124010203180 ). The author SAV is grateful to DST-SERB, New Delhi (India) for their financial support (SR/FTP/PS-083/2012).

Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.

Keywords

CdS nanoparticle
Core-shell heterogeneous film
Photoluminescence
Photovoltaic characterization
ZnO nanorods

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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Vanalakar, S. A., Mali, S. S., Suryawanshi, M. P., Tarwal, N. L., Jadhav, P. R., Agawane, G. L., Gurav, K. V., Kamble, A. S., Shin, S. W., Moholkar, A. V., Kim, J. Y., Kim, J. H., & Patil, P. S. (2014). Photoluminescence quenching of a CdS nanoparticles/ZnO nanorods core-shell heterogeneous film and its improved photovoltaic performance. Optical Materials, 37(C), 766-772. https://doi.org/10.1016/j.optmat.2014.09.005

Vanalakar, SA, Mali, SS, Suryawanshi, MP, Tarwal, NL, Jadhav, PR, Agawane, GL, Gurav, KV, Kamble, AS, Shin, SW, Moholkar, AV, Kim, JY, Kim, JH & Patil, PS 2014, 'Photoluminescence quenching of a CdS nanoparticles/ZnO nanorods core-shell heterogeneous film and its improved photovoltaic performance', Optical Materials, vol. 37, no. C, pp. 766-772. https://doi.org/10.1016/j.optmat.2014.09.005

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title = "Photoluminescence quenching of a CdS nanoparticles/ZnO nanorods core-shell heterogeneous film and its improved photovoltaic performance",

abstract = "CdS nanoparticles/ZnO nanorods core-shell heterogeneous thin films were successfully fabricated using a chemical bath deposition process. X-ray diffraction (XRD), optical spectroscopy and field emission scanning electron microscopy (FE-SEM) were used for the characterization of the samples. Photoluminescence (PL) properties of the CdS nanoparticles/ZnO nanorods core-shell heterogeneous films were studied using PL spectroscopy. The injection of electrons from the CdS conduction band into the ZnO conduction band upon excitation was confirmed by PL quenching. The PL quenching in the present study demonstrated that more than one CdS nanoparticle is capable of networking with the single ZnO nanorod and taking an active part in the charge injection process. By attaching the CdS nanoparticles, the authors found the surface photovoltaic characteristics of ZnO were changed significantly. With a liquid electrolyte as the hole transport medium, CdS nanoparticles/ZnO nanorods core-shell heterogeneous film exhibited a short-circuit current density of 3.62 mA cm-2 and an open-circuit voltage of 643 mV with a total light-to-electricity power conversion efficiency of 1.48% under visible light.",

keywords = "CdS nanoparticle, Core-shell heterogeneous film, Photoluminescence, Photovoltaic characterization, ZnO nanorods",

author = "Vanalakar, {S. A.} and Mali, {S. S.} and Suryawanshi, {M. P.} and Tarwal, {N. L.} and Jadhav, {P. R.} and Agawane, {G. L.} and Gurav, {K. V.} and Kamble, {A. S.} and Shin, {S. W.} and Moholkar, {A. V.} and Kim, {J. Y.} and Kim, {J. H.} and Patil, {P. S.}",

note = "Funding Information: This work was supported by a Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (No.: 20124010203180 ). The author SAV is grateful to DST-SERB, New Delhi (India) for their financial support (SR/FTP/PS-083/2012). Publisher Copyright: {\textcopyright} 2014 Elsevier B.V. All rights reserved.",

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AU - Vanalakar, S. A.

AU - Mali, S. S.

AU - Suryawanshi, M. P.

AU - Tarwal, N. L.

AU - Jadhav, P. R.

AU - Agawane, G. L.

AU - Gurav, K. V.

AU - Kamble, A. S.

AU - Shin, S. W.

AU - Moholkar, A. V.

AU - Kim, J. Y.

AU - Kim, J. H.

AU - Patil, P. S.

N1 - Funding Information: This work was supported by a Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (No.: 20124010203180 ). The author SAV is grateful to DST-SERB, New Delhi (India) for their financial support (SR/FTP/PS-083/2012). Publisher Copyright: © 2014 Elsevier B.V. All rights reserved.

PY - 2014

Y1 - 2014

N2 - CdS nanoparticles/ZnO nanorods core-shell heterogeneous thin films were successfully fabricated using a chemical bath deposition process. X-ray diffraction (XRD), optical spectroscopy and field emission scanning electron microscopy (FE-SEM) were used for the characterization of the samples. Photoluminescence (PL) properties of the CdS nanoparticles/ZnO nanorods core-shell heterogeneous films were studied using PL spectroscopy. The injection of electrons from the CdS conduction band into the ZnO conduction band upon excitation was confirmed by PL quenching. The PL quenching in the present study demonstrated that more than one CdS nanoparticle is capable of networking with the single ZnO nanorod and taking an active part in the charge injection process. By attaching the CdS nanoparticles, the authors found the surface photovoltaic characteristics of ZnO were changed significantly. With a liquid electrolyte as the hole transport medium, CdS nanoparticles/ZnO nanorods core-shell heterogeneous film exhibited a short-circuit current density of 3.62 mA cm-2 and an open-circuit voltage of 643 mV with a total light-to-electricity power conversion efficiency of 1.48% under visible light.

AB - CdS nanoparticles/ZnO nanorods core-shell heterogeneous thin films were successfully fabricated using a chemical bath deposition process. X-ray diffraction (XRD), optical spectroscopy and field emission scanning electron microscopy (FE-SEM) were used for the characterization of the samples. Photoluminescence (PL) properties of the CdS nanoparticles/ZnO nanorods core-shell heterogeneous films were studied using PL spectroscopy. The injection of electrons from the CdS conduction band into the ZnO conduction band upon excitation was confirmed by PL quenching. The PL quenching in the present study demonstrated that more than one CdS nanoparticle is capable of networking with the single ZnO nanorod and taking an active part in the charge injection process. By attaching the CdS nanoparticles, the authors found the surface photovoltaic characteristics of ZnO were changed significantly. With a liquid electrolyte as the hole transport medium, CdS nanoparticles/ZnO nanorods core-shell heterogeneous film exhibited a short-circuit current density of 3.62 mA cm-2 and an open-circuit voltage of 643 mV with a total light-to-electricity power conversion efficiency of 1.48% under visible light.

KW - CdS nanoparticle

KW - Core-shell heterogeneous film

KW - Photoluminescence

KW - Photovoltaic characterization

KW - ZnO nanorods

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JF - Optical Materials

IS - C

ER -

Photoluminescence quenching of a CdS nanoparticles/ZnO nanorods core-shell heterogeneous film and its improved photovoltaic performance

Abstract

Bibliographical note

Keywords

UN SDGs

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